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A graph G is called a ________ if it is a connected acyclic graph.

  1. Cyclic graph
  2. Regular graph
  3. Tree
  4. Not a graph
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A graph G is called a Tree if it is a connected acyclic graph.

tree is an undirected graph in which any two vertices are connected by exactly one path. In other words, any acyclic connected graph is a tree

∴ Tree is a connected graph that has no cycles. Forest is an acyclic graph. Every component of a forest is a tree.

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